Operating mechanism for a four-pole circuit breaker
US5357066A · kind A · utility
104Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1992 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Oct 20, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H73/045
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The operating mechanism of the four-pole circuit breaker comprises an auxiliary mechanism coupled to the main mechanism. The spring of the auxiliary mechanism exerts a torque on the bar, opposing the force of the contact springs when the circuit breaker completes its closing travel and when it is closed; the spring ceases to act on the bar when the circuit breaker has begun its opening travel and when it is open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.